Loudspeaker grille



FIG. 1 is a front perspective view of a loudspeaker grille showing my new design;

FIG. 2 is a front elevational view;

FIG. 3 is a side elevational view;

FIG. 4 is a rear view; and

FIG. 5 is a bottom view. 

The ornamental design for a loudspeaker grille, substantially as shown and described. 